Lambda in a VPC for Private Resources
Understand how to configure Lambda functions to operate within a VPC, enabling secure access to private resources like databases and internal services.
Why Lambda Needs a VPC
By default, AWS Lambda functions run in a network managed by AWS. This network provides internet access but isolates your function from your private AWS resources.
To securely access resources like databases (e.g., Amazon RDS, DynamoDB tables in a VPC) or internal services that are not publicly available, your Lambda function needs to operate within your own Virtual Private Cloud (VPC).
Your Private Cloud Corner
A Virtual Private Cloud (VPC) is like your own isolated, private network within AWS. You define its IP address range, subnets, and network gateways.
- Subnets: Divisions within your VPC. Private subnets host resources that shouldn't be publicly accessible.
- Security Groups: Act as virtual firewalls, controlling inbound and outbound traffic for resources within your VPC.
All lessons in this course
- Lambda in a VPC for Private Resources
- Accessing Databases in VPC
- Network Security Best Practices
- NAT Gateways and Internet Access from a VPC